SHIDU M808 UHF | New Wireless Voice Amplifier Waterproof BT Loud Speaker (18W, Bluetooth 5.0, 2500mAh)

18W Output Power | UHF Wireless | Waterproof Design | Bluetooth Version: 5.0 | Battery Capacity: 3.7V 2500mAh Lithium Battery | Play Time: 6–8 Hours | Charging Voltage: DC 5V | Frequency Response: 30Hz–20KHz | Size: 125×96.4×43.8mm | Weight: 316g | Case Material: ABS+TPU | Working Temperature: −10°C to 45°C | Interface Function: TF Card / USB / TYPE-C Charging Port / MIC / AUX